17<3 
EARTHS. AGGREGATE. 59. Granites. 
ORDER VII. aggregate. 
Comfojed of a mixture of the former orders. 
59. granites. Confining of parts, moftly io 
the form of cryftals, cohering Without any inter- 
mediate cement, and mixed without any deter- 
minate order ; generally of a granular texture, 
hard and durable, and admitting a fine polifla: 
conftittiting the principal material and nucleus of 
primitive lofty mountains. 
simplex. Confining of fcldfpar and quartz. 
Saxum niorenfe. Sftt. not. xii. 3. p. 75. «. 14. 
Found in the SubauMc, Swai/s, Siberian, and Scotch mountains, 
and detached near Geneva: the component parts vary as to 
their predomination, but the particles of feldfpar are fomc- 
times lb combined with transparent quartz as to refemb’.e 
Syriac letters. 
gtnuittus. Confining of feldfpar, quartz, and luica. 
Saxum fpatofum. Sfst. nat. xii. 3. p. 76. n, 19. 
Saxum quarzo, &c. Wall. fyji. 1. p. 407, 
Grariit. Scbme'/ser mineral, 1. /. 308. 
Granite. Kirvoan mineral, l.p. 338. Thomfon chem. p. 13°* 
The moll common kind of granite, and is found in primitive 
and fometimes in Kcondary mountains in moll parts of the 
globe, in innumerable varieties of hardnefs, propornon, dil- 
iribution and colour of parts : fometimes it is found mixed 
with other minerals, as Ihorl, h.ornblcnd, crvllals ot garnet, 
fteatite, and. alumina: it melts in a high degree ot heat, 
leaving however the quartz unaltered : the feldipar is often 
llefh-cohour j the quartz generally white, rarely greenilh t 
it takes a very high polilh, and on this account has tor man/ 
ages been uled in the arcliitedlure of columns, palaces, 
churches, and various ornaments. 
Syenites. Coiififting of feldfpar, quartz, and hornblend. 
Syenites. /'//«. Hijt. mund, 1 . 36, ch. 8 ? 
Sienit. Sebmeifser miner, i. p. 309. 
Sienite. Kivvoan min. i.p. 341. 1 homfon chem, p. 
